A galvanizing apparatus for a workpiece

Abstract

The present application relates to a kind of galvanizing device for workpiece, belong to workpiece galvanizing technical field;Including fixed frame, is fixedly arranged with a ring track beam in fixed frame, is slidably arranged with a circle of hanger bar in track beam, is rotatably arranged with a jaw in each hanger bar lower end respectively, still be provided with drive mechanism on fixed frame, drive mechanism is connected with a circle of hanger bar, by drive mechanism to drive a circle of hanger bar to slide on track beam;It is still fixedly arranged with a circle of support rail on fixed frame, all jaw is contacted with support rail, the support rail includes feeding area, galvanizing preparation area, galvanizing area, shakes material area, cooling area, discharging area, jaw is contacted with the different area section of support rail and keeps different angle;Fixed frame is still fixedly arranged with rotating mechanism in the galvanizing area of support rail, by rotating mechanism to drive jaw to rotate in galvanizing liquid;It has solved the problem that the galvanizing effect of the present workpiece galvanizing device is poor.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of workpiece galvanizing, and particularly relates to a workpiece galvanizing device. BACKGROUND

[0002] In the field of workpiece corrosion prevention treatment, the galvanizing process is widely used because it can effectively improve the corrosion resistance of workpieces. Traditional workpiece galvanizing devices mostly adopt fixed stations or linear conveying modes, which have the following shortcomings: first, the conveying track is mostly a single straight line or a simple circular arc, making it difficult to realize the continuous integration of multiple processes such as feeding, galvanizing, cooling, and discharging, resulting in low production efficiency; second, the workpieces remain stationary or move in a single direction during the galvanizing process, leading to uneven contact between the galvanizing liquid and the workpiece surface, and problems such as uneven thickness of the galvanizing layer and missed plating; third, the angle adjustment of the clamping jaws relies on independent driving elements, resulting in complex structure and poor synchronism, making it difficult to adapt to the needs of different processes for workpiece posture; fourth, when the workpieces exit the galvanizing liquid, the liquid surface impurities are easily attached to the surface, affecting the quality of galvanizing, and there is a lack of efficient liquid surface impurity cleaning mechanism; fifth, the boom is prone to tilting during long-distance conveying, resulting in insufficient stability, and the transmission chain is prone to relaxation, affecting the conveying accuracy; sixth, the residual galvanizing liquid of the workpieces after galvanizing is not fully recovered, resulting in serious waste of raw materials, and the cooling process is single, resulting in poor cooling effect. SUMMARY

[0003] The present application overcomes the shortcomings of the prior art and provides a workpiece galvanizing device.

[0004] To achieve the above-mentioned purposes, the present application is realized by the following technical solutions.

[0005] A workpiece galvanizing device, comprising a fixed frame, a circular ring-shaped track beam fixedly arranged on the fixed frame, a boom slidably arranged on the track beam, a clamping jaw rotatably arranged at the lower end of each boom, a driving mechanism arranged on the fixed frame and connected with the circular boom, the driving mechanism driving the circular boom to slide on the track beam, a support rail fixedly arranged on the fixed frame, all the clamping jaws being in contact with the support rail, the support rail comprising a feeding area, a galvanizing preparation area, a galvanizing area, a shaking area, a cooling area, and a discharging area, the clamping jaws being in contact with different area sections of the support rail to maintain different angles, and a rotating mechanism fixedly arranged on the galvanizing area of the support rail, the rotating mechanism driving the clamping jaws to rotate in the galvanizing liquid.

[0006] Further, the track beam is composed of two semicircular sections and two straight sections, and the cross section of the track beam is in the shape of an "I". A fixed seat is fixedly arranged at the upper end of each boom, two rollers are rotatably arranged in each fixed seat, and the two rollers are in rolling contact with the upper end surfaces of the two sides of the lower flange of the track beam.

[0007] Further, the driving mechanism comprises a driving motor, a speed reducer, a driving rod, a driven rod, a driving sprocket, a driven sprocket, a driving chain, and a driven chain. The driving motor and the speed reducer are fixedly arranged on the fixed frame. The output shaft of the driving motor is fixedly connected with the input shaft of the speed reducer. The output shaft of the speed reducer is fixedly arranged with a vertical driving rod. A vertical driven rod is rotatably arranged on the fixed frame. Two driving sprockets are fixedly arranged on the driving rod. Two driven sprockets are fixedly arranged on the driven rod. The driving sprockets and the driven sprockets on the two sides are connected by the driving chains. A driving chain tooth is fixedly arranged on the outer side of each driving chain. All the hangers are connected by the two driven chains. The upper driven chain is engaged with the driving chain tooth on the upper driving chain. The lower driven chain is engaged with the driving chain tooth on the lower driving chain.

[0008] Further, the clamping jaw comprises a hinge ring, a fixed cylinder, a rotating shaft, a rotating gear, a fixed shell, a fixed jaw, a rotating jaw, and a return spring. The hinge ring is fixedly arranged on the upper end of the fixed cylinder and is hingedly connected with the lower end of the corresponding hanger. The rotating shaft is rotatably inserted into the fixed cylinder. A rotating gear is fixedly sleeved on the outer side of the middle part of the rotating shaft. The lower half of the rotating shaft is in contact with the supporting rail. The fixed shell is fixedly arranged on the lower end of the rotating shaft. The fixed jaw is fixedly arranged on the lower end surface of the fixed shell. The mounting hole is arranged on the bottom plate of the fixed shell. The rotating seat is rotatably arranged in the mounting hole. The rotating seat extends into the fixed shell. The return spring is fixedly arranged between the rotating seat and the inner wall of the fixed shell. The rotating jaw is fixedly arranged on the lower end of the rotating seat.

[0009] Further, the rotating mechanism comprises a fixed rack. The fixed rack is fixedly arranged above the galvanized area of the supporting rail. The rotating gears on the clamping jaws of the galvanized area of the supporting rail are engaged with the fixed rack.

[0010] Further, the support rail is arranged outside the fixed frame and is composed of two semicircular segments and two straight segments; the support rail is a blanking area at the semicircular segment on the front side, is a feeding area at the straight segment on the right side, is a galvanizing preparation area at the semicircular segment on the back side, is a galvanizing area at the rear area of the straight segment on the left side, is a shaking area at the middle area of the straight segment on the left side, and is a cooling area at the front area of the straight segment on the left side; a galvanizing tank is arranged below the galvanizing area of the support rail, and a cooling tank is arranged below the cooling area of the support rail; the support rail is a semicircular structure arranged horizontally at the blanking area, and the gripper always keeps a horizontal state when passing through the blanking area of the support rail from left to right; the support rail is a straight structure arranged horizontally from front to back at the feeding area, and the gripper always keeps a horizontal state when passing through the feeding area of the support rail from front to back; the support rail gradually extends inward and downward from right to left at the galvanizing preparation area, and the gripper gradually transitions from a horizontal state to a vertical state when passing through the galvanizing preparation area of the support rail from right to left; the support rail is a straight structure arranged horizontally from front to back at the galvanizing area, and the gripper is in a vertical state when passing through the galvanizing area of the support rail from back to front; the support rail includes an arc segment on the back side and a wave segment on the front side at the shaking area, the arc segment gradually extends outward and upward from back to front, and the wave segment is a wave-shaped structure extending from front to back, the gripper gradually transitions from a vertical state to a horizontal state when passing through the arc segment of the support rail from back to front; the gripper continuously shakes up and down in a horizontal state when passing through the wave segment of the support rail from back to front; the support rail gradually extends inward and downward from back to front at the cooling area, and then gradually extends outward and upward, the gripper gradually transitions from a horizontal state to a vertical state when passing through the cooling area of the support rail from back to front, and then gradually transitions from a vertical state to a horizontal state.

[0011] Further, the galvanizing device further comprises a liquid surface scraping mechanism, the liquid surface scraping mechanism comprising a fixed plate, an outer guide block, and an inner guide block; the outer guide block is fixedly arranged on the fixed frame and located above the galvanizing area of the support rail; the inner guide block is arranged inside the outer guide block; the upper end of the outer guide block is fixedly connected to the upper end of the inner guide block through the same fixed plate; a parallelogram-shaped moving cavity is formed between the outer guide block and the inner guide block, and the moving cavity is located at the left end of the fixed frame; the left side and the right side of the moving cavity both extend forward and backward, and the right end of the front side and the rear side of the moving cavity is located at the right rear side of the left end; a parallelogram-shaped outer guide groove is arranged on the inner wall of the outer guide block, the height of the left bottom surface of the outer guide groove is higher than the height of the right bottom surface, the rear end of the left bottom surface of the outer guide groove is connected to the rear end of the right bottom surface through a rear transition slope, the front end of the left bottom surface of the outer guide groove is connected to the front end of the right bottom surface through a front transition slope, the right end of the rear transition slope is provided with a height difference with the rear end of the right bottom surface of the outer guide groove, and the left end of the front transition slope is provided with a height difference with the front end of the left bottom surface of the outer guide groove; a parallelogram-shaped inner guide groove is arranged on the inner wall of the inner guide block, and the bottom surface around the inner guide groove is correspondingly arranged with the bottom surface around the outer guide groove.

[0012] Further, the liquid surface scraping mechanism further comprises a guide rod, a guide disc, and a scraping plate; a vertical guide rod is slidably arranged in the moving cavity, the upper end of the guide rod is slidably inserted into the moving cavity, the guide disc is fixedly arranged on the guide rod, the guide disc is arranged between the outer guide groove and the inner guide groove and simultaneously in contact with the bottom surfaces of the outer guide groove and the inner guide groove; when the guide rod is located at different positions in the moving cavity, the guide disc is in contact with the bottom surfaces of the outer guide groove and the inner guide groove at different positions, so that the guide rod is also at different heights; a horizontal scraping plate is fixedly arranged at the lower end of the guide rod.

[0013] Further, the liquid surface scraping mechanism further comprises a driving transmission rod, a driven transmission rod, a synchronous belt transmission mechanism, a transmission sprocket, a crank, a connecting rod, a sliding seat and a reciprocating seat; a vertical driving transmission rod and a vertical driven transmission rod are arranged on the lower end surface of the outer guide block; the driving transmission rod and the driven transmission rod are connected through the synchronous belt transmission mechanism; a transmission sprocket is fixedly arranged on the driving transmission rod and meshes with the driven chain on the upper side; a horizontal crank is fixedly arranged at the lower end of the driven transmission rod, and the end of the crank is fixedly connected with the lower end of the driven transmission rod; two left and right symmetrical sliding seats are arranged below the outer guide block, and each sliding seat is fixedly connected with the lower end surface of the outer guide block; a first sliding groove is arranged on each side end surface of the two sliding seats close to each other, and a reciprocating seat is slidably arranged between the two sliding seats; a connecting rod is rotatably arranged on the middle part of the front end surface of the reciprocating seat, one end of the connecting rod is hingedly connected with the middle part of the front end surface of the reciprocating seat, and the other end of the connecting rod is hingedly connected with one end of the crank away from the driven transmission rod.

[0014] Further, the liquid surface scraping mechanism further comprises a moving block; the reciprocating seat is a horizontally arranged square ring structure, a moving block is slidably arranged inside the reciprocating seat along the left-right direction, an upper and lower through insertion hole is arranged on the moving block, and the lower end of the guide rod is slidably inserted into the insertion hole of the moving block; a vertical limiting groove is arranged on the inner wall of the insertion hole, and a vertical limiting strip is fixedly arranged on the outer wall of the guide rod and slidably inserted into the limiting groove.

[0015] The beneficial effects of the present application relative to the prior art are:

[0016] (1) Integrated continuous production, efficiency is greatly improved: the track beam and the supporting rail with "Yuan circle" structure are integrated with the whole process stations such as the feeding area, the galvanizing preparation area and the galvanizing area, and drive the hanger rod to slide synchronously, so that the workpiece continuously flows through multiple processes without manual transfer, and the production efficiency is significantly improved.

[0017] (2) Precise and controllable galvanizing quality: the fixed rack of the galvanizing area is meshed with the jaw rotating gear, the workpiece moves while rotating, ensuring that the galvanizing liquid fully contacts the surface of the workpiece, and the thickness of the galvanizing layer is uniform; the liquid surface scraping mechanism moves in a parallelogram trajectory to clean the impurities on the liquid surface before the workpiece leaves the liquid, avoiding contamination and improving the surface quality.

[0018] (3) Self-adaptive adjustment of jaw posture: the regions of the supporting rail are designed with different structures, the jaw is in contact with the supporting rail through the rotating shaft to realize self-adaptive conversion of the angle (horizontal-vertical-horizontal), without independent driving, which simplifies the structure while ensuring precise matching of the postures of each process.

[0019] (4) The stability of conveying is obviously enhanced: the inner support wheel cooperates with the inner support plate and the outer support wheel cooperates with the outer support plate to provide bidirectional support for the left and right suspending rods, so that the suspending rods are ensured to be vertical; the chain tensioning mechanism tensions the driven chain to avoid slack, so that the synchronization and precision of conveying are ensured.

[0020] (5) The raw material recycling and cooling effect are optimized: the wave section of the material shaking area makes the workpieces horizontally shake, so that the residual galvanizing solution flows back to the galvanizing tank to reduce waste; the double cooling areas make the workpieces experience the cooling process of "horizontal-vertical-horizontal" twice, so that the workpieces are fully contacted with cooling water to ensure complete cooling.

[0021] (6) The structure is compact and convenient to operate and maintain: the track beam "I-shaped" section cooperates with the suspending rod "Y-shaped" fixing seat to realize stable sliding; each mechanism is linked through mechanical transmission to reduce electrical elements and reduce the failure probability, so that the maintenance is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0022] The application will be further described in detail below with reference to the drawings:

[0023] Figure 1 is a perspective view of the whole application Figure One ;

[0024] Figure 2 is a perspective view of the whole application Figure Two ;

[0025] Figure 3 is a perspective view of the whole application Figure Three ;

[0026] Figure 4 is a perspective view of the whole application Figure Four ;

[0027] Figure 5 is a top view of the whole application;

[0028] Figure 6 is a side view of the whole application;

[0029] Figure 7 is a rear view of the whole application;

[0030] Figure 8 is a perspective view of the whole application without the conveyor, the galvanizing tank, the cooling tank and the liquid surface scraping mechanism Figure One ;

[0031] Figure 9 is a perspective view of the whole application without the conveyor, the galvanizing tank, the cooling tank and the liquid surface scraping mechanism Figure Two ;

[0032] Figure 10is a connection diagram between the track beam, the hanger, the clamping jaw, the support rail, and the driving mechanism;

[0033] Figure 11 is Figure 10 is a partial enlarged diagram at A in FIG. 8;

[0034] Figure 12 is a connection diagram between the support rail and the clamping jaw;

[0035] Figure 13 is a connection diagram between the support rail and the clamping jaw;

[0036] Figure 14 is a connection diagram between the support rail and the clamping jaw;

[0037] Figure 15 is Figure 14 is a partial enlarged diagram at B in FIG. 10;

[0038] Figure 16 is a connection diagram between the support rail and the fixed rack;

[0039] Figure 17 is a connection diagram between the track beam, the hanger, the inner side support mechanism, the outer side support mechanism, and the chain tensioning mechanism;

[0040] Figure 18 is Figure 17 is a partial enlarged diagram at C in FIG. 12;

[0041] Figure 19 is a connection diagram between the driven chain and the liquid surface scraping mechanism;

[0042] Figure 20 is a structure diagram of the liquid surface scraping mechanism;

[0043] Figure 21 is a connection diagram between the reciprocating seat, the moving block, and the guide rod;

[0044] Figure 22 is a structure diagram of the outer side guide block Figure One ;

[0045] Figure 23 is a structure diagram of the outer side guide mechanism Figure Two ;

[0046] Figure 24 is a structure diagram of the inner side guide block Figure One ;

[0047] Figure 25 is a structure diagram of the inner side guide block Figure Two ;

[0048] Figure 26is a top view between the cut open inner guide block and the cut open outer guide block;

[0049] Figure 27 is a three-dimensional schematic view between the cut open inner guide block and the cut open outer guide block;

[0050] Figure 28 is a connection schematic view between the guide rod, the guide disc and the cut open inner guide block and the cut open outer guide block;

[0051] Wherein, 1 is a fixed frame, 2 is a track beam, 3 is a suspender, 4 is a clamping jaw, 5 is a supporting rail, 6 is a feeding area, 7 is a galvanizing preparation area, 8 is a galvanizing area, 9 is a shaking area, 10 is a cooling area, 11 is a discharging area, 12 is a fixed seat, 13 is a roller, 14 is a driving motor, 15 is a speed reducer, 16 is a driving rod, 17 is a driven rod, 18 is a driving sprocket, 19 is a driven sprocket, 20 is a driving chain, 21 is a driven chain, 22 is a hinged ring, 23 is a fixed cylinder, 24 is a rotating shaft, 25 is a rotating gear, 26 is a fixed shell, 27 is a fixed jaw, 28 is a rotating seat, 29 is a return spring, 30 is a rotating jaw, 31 is an arc segment, 32 is a wave segment, 33 is a fixed rack, 34 is a conveyor, 35 is a galvanizing tank, 36 is a cooling tank, 37 is an inner side supporting wheel, 38 is an inner side supporting plate, 39 is an outer side supporting wheel, 40 is a mounting plate, 41 is an outer side supporting plate, 42 is a jacking plate, 43 is a jacking wheel, 44 is an outer side guide block, 45 is an inner side guide block, 46 is a fixed plate, 47 is a moving cavity, 48 is an outer side guide groove, 49 is an inner side guide groove, 50 is a rear side transition inclined surface, 51 is a front side transition inclined surface, 52 is a guide rod, 53 is a guide disc, 54 is a scraping plate, 55 is a driving transmission rod, 56 is a driven transmission rod, 57 is a synchronous belt transmission mechanism, 58 is a transmission sprocket, 59 is a crank, 60 is a sliding seat, 61 is a reciprocating seat, 62 is a connecting rod, 63 is a moving block, and 64 is a limiting strip. DETAILED DESCRIPTION

[0052] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application is further described in detail in conjunction with the embodiments and drawings. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application. The technical solutions of the present application are described in detail below in conjunction with the embodiments and drawings, but the protection scope is not limited thereto.

[0053] As Figure 1As shown in Fig. 28, the present application provides a galvanizing device for workpieces, which comprises a fixing frame 1, a ring-shaped track beam 2 fixedly arranged on the fixing frame 1, a plurality of hangers 3 slidingly arranged on the track beam 2, a plurality of clamping jaws 4 rotatably arranged at the lower ends of the hangers 3 respectively, a driving mechanism arranged on the fixing frame 1 and connected with the hangers 3, the driving mechanism driving the hangers 3 to slide on the track beam 2, a support rail 5 fixedly arranged on the fixing frame 1, all the clamping jaws 4 being in contact with the support rail 5, the support rail 5 comprising a feeding area 6, a galvanizing preparation area 7, a galvanizing area 8, a shaking area 9, a cooling area 10 and a discharging area 11, the clamping jaws 4 being in contact with different area sections of the support rail 5 to keep different angles, and a rotating mechanism fixedly arranged on the fixing frame 1 at the galvanizing area 8 of the support rail 5, the rotating mechanism driving the clamping jaws 4 to rotate in the galvanizing liquid.

[0054] The track beam 2 is horizontally arranged in a "unity circle" structure, which comprises two semicircle sections and two straight line sections, the straight line sections being horizontally arranged along the front-back direction, and the same ends of the two semicircle sections being fixedly connected by a straight line section. The cross section of the track beam 2 is in a "H" shape.

[0055] The hangers 3 are kept vertical, a "Y" shaped fixing seat 12 being fixedly arranged at the upper end of each hanger 3, two rollers 13 being rotatably arranged in each fixing seat 12, and the two rollers 13 being in rolling contact with the upper end faces of the two sides of the lower flange of the track beam 2, so that the hangers 3 can stably slide on the track beam 2.

[0056] The driving mechanism comprises a driving motor 14, a speed reducer 15, a driving rod 16, a driven rod 17, a driving sprocket 18, a driven sprocket 19, a driving chain 20 and a driven chain 21.

[0057] The driving motor 14 and the speed reducer 15 are fixedly arranged on the fixed frame 1. The output shaft of the driving motor 14 is fixedly connected with the input shaft of the speed reducer 15. The output shaft of the speed reducer 15 is vertically downward and fixedly arranged with a vertical driving rod 16 which is rotatably arranged on the fixed frame 1 through a hinge seat. A vertical driven rod 17 is also rotatably arranged on the fixed frame 1 through a hinge seat. Two driving sprockets 18 are fixedly arranged on the driving rod 16. Two driven sprockets 19 are fixedly arranged on the driven rod 17. The upper driving sprocket 18 is connected with the upper driven sprocket 19 through a driving chain 20. The lower driving sprocket 18 is connected with the lower driven sprocket 19 through another driving chain 20. A circle of driving chain teeth is fixedly arranged on the outer side of each driving chain 20 and is arranged at intervals on the chain links of the driving chain 20. All the hangers 3 are connected through the upper and lower driven chains 21 to drive all the hangers 3 to synchronously slide on the track beam 2. The upper driven chain 21 is engaged with the driving chain teeth on the upper driving chain 20. The lower driven chain 21 is engaged with the driving chain teeth on the lower driving chain 20.

[0058] The driving motor 14 drives the driving rod 16 to rotate through the speed reducer 15. The driving rod 16 drives the two driving sprockets 18 to synchronously rotate. The two driving sprockets 18 drive the two driven sprockets 19 to rotate through the two driving chains 20. When the two driving chains 20 synchronously rotate, the driving chains 20 drive the upper and lower driven chains 21 to synchronously rotate through the driving chain teeth on the outer side of the driving chains 20. The upper and lower driven chains 21 drive all the hangers 3 to synchronously slide on the track beam 2. Thus, one circle of hangers 3 drives the clamping jaws 4 at the lower end to rotate clockwise.

[0059] The clamping jaw 4 comprises a hinge ring 22, a fixed cylinder 23, a rotating shaft 24, a rotating gear 25, a fixed shell 26, a fixed claw 27, a rotating claw 30 and a return spring 29.

[0060] The fixed cylinder 23 is a cylindrical structure with an open lower end, and a hinge ring 22 is fixedly arranged at the upper end of the fixed cylinder 23 and hinged to the lower end of the corresponding suspender 3, so that the clamping jaw 4 can swing in and out of the lower end of the suspender 3 through the hinge ring 22. The upper end of the rotating shaft 24 is rotatably inserted into the fixed cylinder 23, and bearings are arranged between the rotating shaft 24 and the inner wall of the fixed cylinder 23, so that the rotating shaft 24 can smoothly rotate in the fixed cylinder 23. A rotating gear 25 is fixedly sleeved on the outer side of the middle part of the rotating shaft 24, and the rotating gear 25 is located outside the open lower end of the fixed cylinder 23. The lower half of the rotating shaft 24 is in contact with the support rail 5, and when the driving mechanism drives a circle of the suspender 3 to slide on the track beam 2, the suspender 3 drives the lower clamping jaw 4 to slide synchronously, and the lower half of the rotating shaft 24 of the clamping jaw 4 controls the angle of the rotating shaft 24 by being in contact with different area segments of the support rail 5, thereby controlling the angle of the whole clamping jaw 4. A square fixed shell 26 is fixedly arranged at the lower end of the rotating shaft 24, and a fixed jaw 27 is fixedly arranged on the lower end surface of the fixed shell 26. An installation opening is arranged on the bottom plate of the fixed shell 26, a rotating seat 28 is rotatably arranged in the installation opening, the rotating seat 28 extends into the fixed shell 26, and a return spring 29 is fixedly arranged between the rotating seat 28 and the inner wall of the fixed shell 26. A rotating jaw 30 is fixedly arranged at the lower end of the rotating seat 28. When the rotating jaw 30 is not subjected to external force, the rotating jaw 30 is in close contact with the fixed jaw 27 under the elastic force of the return spring 29, so as to clamp the workpiece; when the rotating jaw 30 is pulled by external force, the return spring 29 is compressed, and the rotating jaw 30 is separated from the fixed jaw 27, so that the workpiece can be removed or installed between the fixed jaw 27 and the rotating jaw 30.

[0061] The support rail 5 is arranged outside the fixed frame 1 and has a "unity circle" structure and is composed of front and rear semicircular segments and left and right straight line segments. The support rail 5 is a blanking area 11 at the front semicircular segment, is an upper feeding area 6 at the right straight line segment, is a galvanizing preparation area 7 at the rear semicircular segment, is a galvanizing area 8 at the left straight line segment rear area, is a shaking area 9 at the left straight line segment middle area, and is a cooling area 10 at the left straight line segment front area.

[0062] The support rail 5 is a horizontally arranged semicircular structure at the blanking area 11, and the clamping jaw 4 always maintains a horizontal state when passing through the blanking area 11 of the support rail 5 from left to right.

[0063] The support rail 5 is a front and rear horizontally arranged straight line structure at the upper feeding area 6, and the clamping jaw 4 always maintains a horizontal state when passing through the upper feeding area 6 of the support rail 5 from front to rear.

[0064] The support rail 5 gradually extends inward and downward at the galvanizing preparation area 7 from right to left, and the gripper 4 gradually transitions from a horizontal state to a vertical state when passing through the galvanizing preparation area 7 of the support rail 5 from right to left.

[0065] The support rail 5 is a straight line structure arranged horizontally in front and back at the galvanizing area 8, and the lower half of the rotating shaft 24 of the gripper 4 remains in a vertical state when contacting the galvanizing area 8 of the support rail 5, and the gripper 4 in the galvanizing area 8 is in a free hanging state. Therefore, the gripper 4 is in a vertical hanging state when passing through the galvanizing area 8 of the support rail 5 from back to front.

[0066] The support rail 5 includes an arc segment 31 at the rear and a wave segment 32 at the front at the material shaking area 9. The arc segment 31 gradually extends outward and upward from back to front, and the wave segment 32 is a wave-shaped structure extending from back to front. The gripper 4 gradually transitions from a vertical state to a horizontal state when passing through the arc segment 31 of the support rail 5 from back to front at the material shaking area 9, and the gripper 4 continuously shakes up and down in a horizontal state when passing through the wave segment 32 of the support rail 5 from back to front at the material shaking area 9.

[0067] The support rail 5 is provided with two cooling areas 10 in front and back. The support rail 5 gradually extends inward and downward at the cooling area 10 from back to front, and then gradually extends outward and upward. The gripper 4 gradually transitions from a horizontal state to a vertical state, and then gradually transitions from a vertical state to a horizontal state when passing through the cooling area 10 of the support rail 5 from back to front.

[0068] The rotating mechanism includes a fixed rack 33 fixedly arranged above the galvanizing area 8 of the support rail 5. The fixed rack 33 is arranged horizontally in the front and back direction, and the rotating gear 25 on the gripper 4 in the galvanizing area 8 of the support rail 5 is engaged with the fixed rack 33. When the gripper 4 passes through the galvanizing area 8 of the support rail 5 from back to front, the rotating rack remains rotating under the action of the fixed rack 33, thereby driving the fixed shell 26 at the lower end of the rotating shaft 24 to rotate, driving the fixed jaw 27 and the rotating jaw 30 to rotate, and further driving the workpiece on the gripper 4 to rotate inside the galvanizing tank 35.

[0069] The galvanizing device further includes a conveyor 34, a galvanizing tank 35, and two cooling tanks 36. The conveyor 34 is arranged below the feeding area 6 of the support rail 5, the galvanizing tank 35 is arranged below the galvanizing area 8 of the support rail 5, and the two cooling tanks 36 are arranged below the two cooling areas 10 of the support rail 5.

[0070] The galvanizing device further comprises an inner side supporting mechanism, which comprises an inner side supporting wheel 37 and an inner side supporting plate 38. The inner side supporting wheel 37 is rotatably arranged on the inner side end surface of each suspender 3. The inner side supporting plate 38 is fixedly arranged on the left and right sides of the fixed frame 1 and extends horizontally and vertically. When the suspender 3 moves to the left and right sides of the fixed frame 1, the inner side supporting wheel 37 on the suspender 3 is in rolling contact with the inner side supporting plate 38 on the left and right sides, thereby providing the suspender 3 on the left and right sides with an inner-to-outer supporting force.

[0071] The galvanizing device further comprises an outer side supporting mechanism, which comprises an outer side supporting wheel 39, a mounting plate 40, and an outer side supporting plate 41. The mounting plate 40 is fixedly arranged on the outer side end surface of each suspender 3. The outer side supporting wheel 39 is rotatably arranged on the outer side end surface of the mounting plate 40. The outer side supporting plate 41 is fixedly arranged on the left and right sides of the fixed frame 1 and extends horizontally and vertically. When the suspender 3 moves to the left and right sides of the fixed frame 1, the outer side supporting wheel 39 on the mounting plate 40 of the suspender 3 is in rolling contact with the outer side supporting plate 41 on the left and right sides, thereby providing the suspender 3 on the left and right sides with an outer-to-inner supporting force.

[0072] Through the joint action of the inner side supporting mechanism and the outer side supporting mechanism, the suspender 3 is subjected to the joint action of the inner side and the outer side when passing through the left and right sides of the fixed frame 1, so that the suspender 3 always maintains a vertical state.

[0073] The galvanizing device further comprises a chain tensioning mechanism. Two sets of chain tensioning mechanisms are arranged on the front and rear sides of the fixed frame 1 and are distributed vertically. The two sets of chain tensioning mechanisms on the front side tension the inner side of the front end of the upper and lower driven chains 21, and the two sets of chain tensioning mechanisms on the rear side tension the inner side of the rear end of the upper and lower driven chains 21. The chain tensioning mechanism comprises a tensioning plate 42 and a tensioning wheel 43. The tensioning plate 42 is a horizontally arranged semicircular plate structure and is fixedly connected to the fixed frame 1. A row of tensioning wheels 43 is rotatably arranged on the outer side arc surface of the tensioning plate 42 and is in rolling contact with the inner side surface of the driven chain 21. The inner side of the front and rear ends of each driven chain 21 is tensioned by the chain tensioning mechanism, so that each driven chain 21 maintains a taut state, thereby maintaining the best working state.

[0074] The galvanizing device further comprises a liquid surface scraping mechanism, which comprises a fixed plate 46, an outer side guide block 44, an inner side guide block 45, a guide rod 52, a scraping plate 54, a transmission sprocket 58, a driving transmission rod 55, a driven transmission rod 56, a synchronous belt transmission mechanism 57, a crank 59, a connecting rod 62, a reciprocating seat 61, a sliding seat 60, and a moving block 63.

[0075] The outer guiding block 44 is fixedly arranged on the fixed frame 1 and is located above the galvanizing area 8 of the support rail 5. The inner guiding block 45 is arranged inside the outer guiding block 44. The upper end of the outer guiding block 44 is fixedly connected with the upper end of the inner guiding block 45 through the same fixed plate 46. A parallelogram-shaped moving cavity 47 is formed between the outer guiding block 44 and the inner guiding block 45 and is located at the left end of the fixed frame 1. The left side and the right side of the moving cavity 47 are both kept extending forward and backward. The right end of the front side and the rear side of the moving cavity 47 is located at the right rear side of the left end.

[0076] A parallelogram-shaped outer guiding groove 48 is arranged on the inner wall of the outer guiding block 44. The height of the left bottom surface of the outer guiding groove 48 is higher than the height of the right bottom surface. The rear end of the left bottom surface of the outer guiding groove 48 is connected with the rear end of the right bottom surface through the rear transition inclined surface 50. The front end of the left bottom surface of the outer guiding groove 48 is connected with the front end of the right bottom surface through the front transition inclined surface 51. The right end of the rear transition inclined surface 50 is arranged with a height difference from the rear end of the right bottom surface of the outer guiding groove 48. The left end of the front transition inclined surface 51 is arranged with a height difference from the front end of the left bottom surface of the outer guiding groove 48.

[0077] A parallelogram-shaped inner guiding groove 49 is arranged on the inner wall of the inner guiding block 45. The bottom surface around the inner guiding groove 49 is correspondingly arranged with the bottom surface around the outer guiding groove 48.

[0078] A vertical guiding rod 52 is slidably arranged inside the moving cavity 47. The upper end of the guiding rod 52 is slidably inserted into the moving cavity 47, so that the guiding rod 52 slides around the parallelogram-shaped moving cavity 47. A circular ring-shaped guiding disc 53 is fixedly arranged on the guiding rod 52. The guiding disc 53 is arranged between the outer guiding groove 48 and the inner guiding groove 49 and is in contact with the bottom surface of the outer guiding groove 48 and the inner guiding groove 49. When the guiding rod 52 is located at different positions of the moving cavity 47, the guiding disc 53 is in contact with the bottom surface of the outer guiding groove 48 and the inner guiding groove 49 at different positions, so that the guiding rod 52 is also at different heights. A horizontal scraping plate 54 is fixedly arranged at the lower end of the guiding rod 52. When the guiding disc 53 is at the right side of the bottom surface of the outer guiding groove 48 and the inner guiding groove 49, the scraping plate 54 is located at the liquid surface inside the galvanizing tank 35. When the guiding disc 53 is at the left side of the bottom surface of the outer guiding groove 48 and the inner guiding groove 49, the scraping plate 54 is separated from the liquid surface inside the galvanizing tank 35.

[0079] An active transmission rod 55 and a passive transmission rod 56 are arranged on the lower end surface of the outer guide block 44, and the active transmission rod 55 and the passive transmission rod 56 are connected by a synchronous belt transmission mechanism 57. A transmission sprocket 58 is fixedly arranged on the active transmission rod 55, and the transmission sprocket 58 is engaged with the upper passive chain 21. A horizontal crank 59 is fixedly arranged on the lower end of the passive transmission rod 56, and the end of the crank 59 is fixedly connected with the lower end of the passive transmission rod 56.

[0080] Two left-right symmetrical sliding seats 60 are arranged below the outer guide block 44, and each sliding seat 60 is fixedly connected with the lower end surface of the outer guide block 44 by two vertical connecting rods. A first sliding groove is arranged on the side end surface of each sliding seat 60, and the first sliding groove is horizontally arranged along the front-rear direction. A reciprocating seat 61 is slidably arranged between the two sliding seats 60, and the two ends of the reciprocating seat 61 are slidably connected with the first sliding grooves of the two sliding seats 60. A connecting rod 62 is rotatably arranged on the middle part of the front end surface of the reciprocating seat 61, one end of the connecting rod 62 is hingedly connected with the middle part of the front end surface of the reciprocating seat 61, and the other end of the connecting rod 62 is hingedly connected with the end of the crank 59 away from the passive transmission rod 56.

[0081] The reciprocating seat 61 is horizontally arranged in a square ring shape, and the reciprocating seat 61 extends along the left-right direction. Second sliding grooves extending along the left-right direction are arranged on the inner walls of the front and rear sides of the reciprocating seat 61, and a moving block 63 is slidably arranged in the reciprocating seat 61 along the left-right direction, and the front and rear ends of the moving block 63 are slidably connected with the second sliding grooves on the inner walls of the front and rear sides of the reciprocating seat 61. An upper and lower through insertion hole is arranged on the moving block 63, and the lower end of the guide rod 52 is slidably inserted into the insertion hole of the moving block 63; a vertical limiting groove is arranged on the inner wall of the insertion hole, and a vertical limiting strip 64 is fixedly arranged on the outer wall of the guide rod 52, and the limiting strip 64 is slidably inserted into the limiting groove; through the cooperation of the limiting strip 64 and the limiting groove, the guide rod 52 can only vertically slide in the moving block 63, and the guide rod 52 and the moving block 63 cannot rotate relative to each other, so that the scraping plate 54 at the lower end of the guide rod 52 is always at the same angle.

[0082] The working principle of the present application is as follows:

[0083] Firstly, the workpiece is conveyed from the conveyor 34 to the loading area 6 of the support rail 5, then the worker pries open the fixed jaw 27 and the rotating jaw 30 of the clamp jaw 4 at the loading area 6 of the support rail 5, fixes the workpiece between the fixed jaw 27 and the rotating jaw 30, and then releases the rotating jaw 30, so that the fixed jaw 27 and the rotating jaw 30 clamp the workpiece under the elastic force of the return spring 29, and the clamped workpiece is conveyed from front to back. At this time, the clamp jaws 4 at the loading area 6 of the support rail 5 are all in a horizontal state.

[0084] The second step, the clamping jaw 4 clamping the workpiece enters the galvanizing preparation area 7 of the support rail 5. Since the support rail 5 gradually extends inward and downward from right to left at the galvanizing preparation area 7, the clamping jaw 4 gradually transitions from a horizontal state to a vertical state when passing through the galvanizing preparation area 7 of the support rail 5 from right to left, and finally changes to a vertical state. The clamping jaw 4 in the vertical state with the clamped workpiece enters the inside of the galvanizing liquid of the galvanizing tank 35.

[0085] The third step, the clamping jaw 4 in the vertical state with the clamped workpiece is conveyed from back to front at the galvanizing area 8 of the support rail 5. During the conveying process, the workpiece is always immersed in the galvanizing liquid. When the clamping jaw 4 passes through the galvanizing area 8 of the support rail 5 from back to front, the rotating gear 25 keeps rotating under the action of the fixed rack 33, thereby driving the fixed shell 26 at the lower end of the rotating shaft 24 to rotate, the fixed shell 26 drives the fixed jaw 27 and the rotating jaw 30 to rotate, and in turn drives the workpiece on the clamping jaw 4 to rotate inside the galvanizing tank 35. Therefore, the workpiece moves from back to front in the galvanizing liquid while rotating, thereby ensuring that the workpiece achieves the best galvanizing effect.

[0086] The fourth step, as the clamping jaw 4 passes through the galvanizing area 8 of the support rail 5 from back to front, the upper driven chain 21 drives the transmission sprocket 58 to rotate, the transmission sprocket 58 drives the driving transmission rod 55 to rotate, the driving transmission rod 55 drives the driven transmission rod 56 to rotate through the synchronous belt transmission mechanism 57, the driven transmission rod 56 drives the crank 59 to rotate, and the crank 59 drives the reciprocating seat 61 to reciprocate along the front and back directions through the connecting rod 62. When the reciprocating seat 61 reciprocates, the moving block 63 reciprocates inside the reciprocating seat 61 along the left and right directions, thereby making the guide rod 52 slide around the parallelogram-shaped moving cavity 47, and the guide rod 52 drives the lower scraping plate 54 to move along the trajectory of the parallelogram, thereby scraping off the impurities on the surface of the workpiece before it moves out of the galvanizing liquid, preventing the impurities from adhering to the surface of the workpiece after galvanizing.

[0087] When the reciprocating seat 61 slides to the most front side, the moving block 63 is located at the most left side inside the reciprocating seat 61, and at this time, the guide disc 53 is located at the most front end of the left side bottom surface of the outer guide groove 48 and the inner guide groove 49.

[0088] As the reciprocating seat 61 slides backward, the guide rod 52 slides backward at the left side segment of the moving cavity 47, and the guide disc 53 slides backward at the left side bottom surface of the outer guide groove 48 and the inner guide groove 49. At this time, the scraping plate 54 is separated from the surface of the galvanizing liquid. During this process, the moving block 63 is always located at the most left side inside the reciprocating seat 61. Until the guide rod 52 moves to the last end of the left side segment of the moving cavity 47, and the guide disc 53 moves to the last end of the left side bottom surface of the outer guide groove 48 and the inner guide groove 49.

[0089] With the reciprocating seat 61 continuing to slide backward, the guide rod 52 slides rightward and backward inside the rear section of the moving cavity 47, and the guide disc 53 slides rightward and backward at the rear transition slope 50 of the outer guide groove 48 and the inner guide groove 49, and since the rear transition slope 50 is higher on the left and lower on the right, the height of the guide disc 53 continuously decreases while sliding until the lower end of the scraping plate 54 enters below the surface of the galvanizing liquid. During this process, the moving block 63 slides rightward inside the reciprocating seat 61 under the drive of the guide rod 52. Until the guide rod 52 moves to the rightmost end of the rear section of the moving cavity 47, the guide disc 53 moves to the last end at the right bottom surface of the outer guide groove 48 and the inner guide groove 49. At this time, the reciprocating seat 61 also slides to the last side position, and the moving block 63 slides to the rightmost position inside the reciprocating seat 61.

[0090] Then the reciprocating seat 61 starts to slide forward, and the reciprocating seat 61 drives the guide rod 52 to slide forward inside the moving cavity 47, and since there is a height difference between the right end of the rear transition slope 50 and the rear end of the right bottom surface of the outer guide groove 48, under the blocking effect of the height difference, the guide disc 53 will not enter the rear transition slope 50 of the outer guide groove 48 and the inner guide groove 49 in reverse when the guide rod 52 drives the guide disc 53 to slide forward, but will slide forward along the right bottom surface of the outer guide groove 48 and the inner guide groove 49; the guide rod 52 drives the scraping plate 54 to slide forward at the same height, so as to scrape off the impurities on the surface of the workpiece before the workpiece moves out of the galvanizing liquid, thereby preventing the impurities from adhering to the surface of the workpiece after galvanizing. During this process, the moving block 63 is always at the rightmost position inside the reciprocating seat 61. Until the guide rod 52 moves to the front end of the right section of the moving cavity 47, the guide disc 53 moves to the front end at the right bottom surface of the outer guide groove 48 and the inner guide groove 49.

[0091] With the reciprocating seat 61 continuing to slide forward, the guide rod 52 slides leftward and forward inside the front section of the moving cavity 47, and the guide disc 53 slides leftward and forward at the front transition slope 51 of the outer guide groove 48 and the inner guide groove 49, and since the front transition slope 51 is higher on the left and lower on the right, the height of the guide disc 53 continuously increases while sliding until the lower end of the scraping plate 54 completely leaves the surface of the galvanizing liquid. During this process, the moving block 63 slides leftward inside the reciprocating seat 61 under the drive of the guide rod 52. Until the guide rod 52 moves to the leftmost end of the front section of the moving cavity 47, the guide disc 53 moves to the front end at the left bottom surface of the outer guide groove 48 and the inner guide groove 49. At this time, the reciprocating seat 61 also slides to the frontmost position, and the moving block 63 slides to the leftmost position inside the reciprocating seat 61, and the whole liquid surface scraping mechanism returns to the initial position.

[0092] With the next backward sliding of the reciprocating seat 61, the above process is repeated again. Since the left end of the front transition slope 51 and the front end of the left side bottom surface of the outer guide groove 48 are provided with a height difference, when the guide rod 52 drives the guide disc 53 to slide backward, the guide disc 53 cannot enter the front transition slope 51 of the outer guide groove 48 and the inner guide groove 49 in reverse due to the blocking effect of the height difference, but slides backward along the left side bottom surface of the outer guide groove 48 and the inner guide groove 49. The guide rod 52 keeps rotating counterclockwise inside the moving cavity 47.

[0093] The liquid surface scraping mechanism works one cycle, and a workpiece is removed from the galvanizing liquid. Then the liquid surface scraping mechanism enters the next working cycle, and the next workpiece is removed from the galvanizing liquid, so that each workpiece removed from the liquid surface is kept clean, and each workpiece after removal does not have impurities attached to the surface.

[0094] In the fifth step, when the workpiece is removed from the galvanizing liquid, the clamping jaw 4 gradually transitions from the vertical state to the horizontal state when passing through the arc-shaped section 31 of the shake-off area 9 of the support rail 5 from back to front; when the clamping jaw 4 passes through the wave-shaped section 32 of the shake-off area 9 of the support rail 5 from back to front, the clamping jaw 4 continuously shakes up and down in the horizontal state, so that the residual galvanizing liquid on the surface of the workpiece is shaken off, and the shaken-off galvanizing liquid returns to the inside of the galvanizing tank 35.

[0095] In the sixth step, when the clamping jaw 4 passes through the cooling area 10 of the support rail 5 from back to front, the clamping jaw 4 first gradually transitions from the horizontal state to the vertical state, at which time the workpiece on the clamping jaw 4 in the vertical state enters the inside of the cooling water of the cooling tank 36 to cool the galvanized workpiece, and then the clamping jaw 4 gradually transitions from the vertical state to the horizontal state, so that the cooled workpiece is removed from the cooling water. Then the clamping jaw 4 passes through another cooling area 10 of the support rail 5 again, and experiences another cooling process, so that the galvanized workpiece is completely cooled.

[0096] In the seventh step, the completely cooled workpiece enters the inside of the discharging area 11, at which time the worker can pry open the rotating jaw 30 to unload the galvanized workpiece.

[0097] It will be obvious to a person skilled in the art that, without departing from the spirit or essential characteristics of the application, the present application can be implemented in other specific forms. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the scope of the claims.

Claims

1. A galvanizing apparatus for a workpiece, characterized by: The system includes a fixed frame (1), on which a ring-shaped track beam (2) is fixedly mounted. A ring of hanging rods (3) is slidably mounted on the track beam (2). A gripper (4) is rotatably mounted at the lower end of each hanging rod (3). A drive mechanism is also mounted on the fixed frame (1) and is connected to the ring of hanging rods (3). The drive mechanism drives the ring of hanging rods (3) to slide on the track beam (2). A support rail (5) is also fixedly mounted on the fixed frame (1). All the grippers (4) are in contact with the support rail (5), which includes a feeding area (6), a galvanizing preparation area (7), a galvanizing area (8), a shaking area (9), a cooling area (10), and a discharging area (11). The grippers (4) are in contact with different sections of the support rail (5) and maintain different angles. The fixed frame (1) is also fixedly equipped with a rotating mechanism in the galvanizing area (8) of the support rail (5). The rotating mechanism drives the grippers (4) to rotate inside the galvanizing liquid. The support rail (5) is located on the outside of the fixed frame (1) and consists of two semicircular sections at the front and rear and two straight sections at the left and right. The front semicircular section of the support rail (5) is the unloading area (11), the right straight section is the loading area (6), the rear semicircular section is the galvanizing preparation area (7), the rear part of the left straight section is the galvanizing area (8), the middle part of the left straight section is the shaking area (9), and the front part of the left straight section is the cooling area (10). The galvanizing of the support rail (5) is... A galvanizing tank (35) is provided below the area (8), and a cooling tank (36) is provided below the cooling area (10) of the support rail (5); the support rail (5) is a horizontally arranged semi-circular structure in the unloading area (11), and remains horizontal when the gripper (4) passes through the unloading area (11) of the support rail (5) from left to right; the support rail (5) is a horizontally arranged straight structure in the loading area (6), and remains horizontal when the gripper (4) passes through the loading area (6) of the support rail (5) from front to back; the support rail (5) gradually moves inward and downward from right to left in the galvanizing preparation area (7). As the gripper (4) passes through the galvanizing preparation area (7) of the support rail (5) from right to left, it gradually transitions from a horizontal state to a vertical state. The support rail (5) is a straight structure with horizontal front and back at the galvanizing area (8). The gripper (4) is in a vertically drooping state when it passes through the galvanizing area (8) of the support rail (5) from back to front. The support rail (5) includes a rear arc-shaped section (31) and a front wave section (32) in the material shaking area (9). The arc-shaped section (31) gradually extends outward and upward from back to front, and the wave section (32) is a wave-shaped structure extending back and forth. When the gripper (4) passes through the galvanizing preparation area (7) of the support rail (5) from back to front, it gradually transitions from a horizontal state to a vertical state. When passing through the arc section (31) of the material shaking area (9) of the support rail (5), the vertical state gradually transitions to the horizontal state; when the gripper (4) passes through the wave section (32) of the material shaking area (9) of the support rail (5) from back to front, the gripper (4) shakes up and down continuously in the horizontal state; the support rail (5) extends gradually inward and downward from back to front in the cooling area (10), and then gradually extends outward and upward. When the gripper (4) passes through the cooling area (10) of the support rail (5) from back to front, it first transitions from the horizontal state to the vertical state, and then gradually transitions from the vertical state to the horizontal state.

2. A galvanizing apparatus for a workpiece according to claim 1, wherein: The track beam (2) is composed of two semicircular segments at the front and rear and two straight segments on the left and right. The cross section of the track beam (2) is an "I" shaped structure. A fixed seat (12) is fixedly installed at the upper end of each hanger (3). Two rollers (13) are rotatably installed inside each fixed seat (12). The two rollers (13) roll in contact with the upper surfaces of the two sides of the lower flange of the track beam (2).

3. The apparatus for galvanizing a workpiece of claim 1 wherein: The drive mechanism includes a drive motor (14), a reducer (15), a drive rod (16), a driven rod (17), a drive sprocket (18), a driven sprocket (19), a drive chain (20), and a driven chain (21). The drive motor (14) and the reducer (15) are fixedly mounted on a fixed frame (1). The output shaft of the drive motor (14) is fixedly connected to the input shaft of the reducer (15). A vertical drive rod (16) is fixedly mounted on the output shaft of the reducer (15). A vertical driven rod (17) is also rotatably mounted on the fixed frame (1). Two drive sprockets (18) are fixedly installed on the upper and lower sides, and two driven sprockets (19) are fixedly installed on the driven rod (17). The drive sprockets (18) and driven sprockets (19) on the upper and lower sides are connected by drive chains (20). A ring of drive chain teeth is fixedly installed on the outer side of each drive chain (20). All the rods (3) are connected by two driven chains (21) on the upper side. The driven chain (21) on the upper side meshes with the drive chain teeth on the drive chain (20) on the upper side, and the driven chain (21) on the lower side meshes with the drive chain teeth on the drive chain (20) on the lower side.

4. The apparatus for galvanizing a workpiece of claim 1 wherein: The gripper (4) includes a hinge ring (22), a fixed cylinder (23), a rotating shaft (24), a rotating gear (25), a fixed shell (26), a fixed claw (27), a rotating claw (30), and a return spring (29). A hinge ring (22) is fixedly installed at the upper end of the fixed cylinder (23), and the hinge ring (22) is hinged to the lower end of the corresponding lifting rod (3). The upper end of the rotating shaft (24) is rotatably inserted into the fixed cylinder (23), and a rotating gear (25) is fixedly sleeved on the outer side of the middle part of the rotating shaft (24). The lower half of (24) is in contact with the support rail (5). A fixed shell (26) is fixedly installed at the lower end of the rotating shaft (24). A fixed claw (27) is fixedly installed on the lower end face of the fixed shell (26). An installation port is provided on the bottom plate of the fixed shell (26). A rotating seat (28) is rotatably installed inside the installation port. The rotating seat (28) extends into the interior of the fixed shell (26). A return spring (29) is fixedly installed between the rotating seat (28) and the inner wall of the fixed shell (26). A rotating claw (30) is fixedly installed at the lower end of the rotating seat (28).

5. A galvanizing apparatus for a workpiece according to claim 4, wherein: The rotating mechanism includes a fixed rack (33), which is fixedly disposed above the galvanized area (8) of the support rail (5). The rotating gears (25) on the grippers (4) of the galvanized area (8) of the support rail (5) are all engaged with the fixed rack (33).

6. The apparatus for galvanizing a workpiece of claim 3 wherein: The galvanizing device also includes a liquid surface scraping mechanism, which includes a fixed plate (46), an outer guide block (44), and an inner guide block (45). An outer guide block (44) is fixedly installed on the fixed frame (1). The outer guide block (44) is located above the galvanizing area (8) of the support rail (5). An inner guide block (45) is installed inside the outer guide block (44). The upper end of the outer guide block (44) and the upper end of the inner guide block (45) are fixedly connected by the same fixed plate (46). A parallelogram-shaped moving cavity (47) is formed between the outer guide block (44) and the inner guide block (45). The moving cavity (47) is located outside the left end of the fixed frame (1). The left and right sections of the moving cavity (47) extend forward and backward. The right ends of the front and rear sections of the moving cavity (47) are located on the right rear side of the left end. A parallelogram-shaped outer guide groove (48) is provided on the inner wall of the guide block (44). The height of the left bottom surface of the outer guide groove (48) is higher than the height of the right bottom surface. The rear end of the left bottom surface of the outer guide groove (48) and the rear end of the right bottom surface are connected by a rear transition slope (50). The front end of the left bottom surface of the outer guide groove (48) and the front end of the right bottom surface are connected by a front transition slope (51). There is a height difference between the right end of the rear transition slope (50) and the rear end of the right bottom surface of the outer guide groove (48). There is a height difference between the left end of the front transition slope (51) and the front end of the left bottom surface of the outer guide groove (48). A parallelogram-shaped inner guide groove (49) is provided on the inner wall of the inner guide block (45). The bottom surfaces of the inner guide groove (49) are corresponding to the bottom surfaces of the outer guide groove (48).

7. A galvanizing apparatus for a workpiece according to claim 6, characterized in that: The liquid surface scraping mechanism also includes a guide rod (52), a guide disc (53), and a scraping plate (54); a vertical guide rod (52) is slidably arranged inside the moving cavity (47), the upper end of the guide rod (52) is slidably inserted into the moving cavity (47), a guide disc (53) is fixedly arranged on the guide rod (52), the guide disc (53) is arranged between the outer guide groove (48) and the inner guide groove (49), and simultaneously contacts the bottom surfaces of the outer guide groove (48) and the inner guide groove (49); when the guide rod (52) is located at different positions in the moving cavity (47), the guide disc (53) contacts the bottom surfaces of the outer guide groove (48) and the inner guide groove (49) at different positions, so that the guide rod (52) is also at different heights; a horizontal scraping plate (54) is fixedly arranged at the lower end of the guide rod (52).

8. A galvanizing apparatus for a workpiece according to claim 7, characterized in that: The liquid surface scraping mechanism also includes a drive rod (55), a driven rod (56), a synchronous belt drive mechanism (57), a drive sprocket (58), a crank (59), a connecting rod (62), a slide (60), and a reciprocating seat (61); a vertical drive rod (55) and a vertical driven rod (56) are rotatably arranged on the lower end face of the outer guide block (44), and the drive rod (55) and the driven rod (56) are connected by a synchronous belt drive mechanism (57); a drive sprocket (58) is fixedly arranged on the drive rod (55), and the drive sprocket (58) meshes with the driven chain (21) on the upper side; a water... A flat crank (59) is fixedly connected to the lower end of the driven transmission rod (56); two left-right symmetrical slides (60) are provided below the outer guide block (44), and each slide (60) is fixedly connected to the lower end face of the outer guide block (44); a first sliding groove is provided on the side end face of the two slides (60) that are close to each other; a reciprocating seat (61) is slidably provided between the two slides (60); a connecting rod (62) is rotatably provided in the middle of the front end face of the reciprocating seat (61); one end of the connecting rod (62) is hinged to the middle of the front end face of the reciprocating seat (61), and the other end of the connecting rod (62) is hinged to the end of the crank (59) away from the driven transmission rod (56).

9. A galvanizing apparatus for a workpiece according to claim 8, characterized in that: The liquid surface scraping mechanism also includes a moving block (63); the reciprocating seat (61) is a horizontally arranged square ring structure, and a moving block (63) is slidably arranged inside the reciprocating seat (61) along the left and right direction. A vertically penetrating insertion hole is provided on the moving block (63), and the lower end of the guide rod (52) is slidably inserted into the insertion hole of the moving block (63); a vertical limiting groove is provided on the inner wall of the insertion hole, and a vertical limiting strip (64) is fixedly arranged on the outer wall of the guide rod (52), and the limiting strip (64) is slidably inserted into the limiting groove.

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